Hydrochloric Acid and Sodium Acetate
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HCl + CH3COONa → CH3COOH + NaCl
概要
A strong acid reacts with the salt of a weak acid to liberate the weak acid. Hydrochloric acid protonates acetate ions to form acetic acid because HCl is a much stronger acid. This reaction demonstrates the principle that stronger acids displace weaker acids from their salts.
参加者
| 役割 | 物質 | 係数 | 状態 |
|---|---|---|---|
| 反応物 | Hydrochloric Acid HCl | 1 | (aq) |
| 生成物 | Acetic Acid CH₃COOH | 1 | (aq) |
| 生成物 | Sodium Chloride NaCl | 1 | (aq) |
日常の例
Adding vinegar (acetic acid) to a solution of baking soda generates the characteristic fizzing because the same displacement principle applies to carbonate salts.
産業上の重要性
この原理は工業化学において塩から弱酸を製造する際や酸塩基平衡の理解に利用される。バッファー調製と酢酸塩の酸性化にも応用される。
特性
- タイプ
- Acid-Base
- 可逆的
- いいえ
- エネルギー
- 発熱性
- ΔH
- -1.0 kJ/mol